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Have you ever wondered what makes up everything in the world around you? Or what exactly is the difference between solids, liquids, and gases? Have you wanted to know what causes two substances to react or change?

Chemistry: Investigate the Matter that Makes Up Your World introduces readers 12 through 15 to the fascinating world of protons, neutrons, and electrons. Learn how these molecules combine to form ordinary objects such as the chair you're sitting on, the water in your glass, even you Through hands-on, investigative projects, readers delve into the world of chemical...

The Vietnam War was a time of social, political, and economic upheaval, a time of confusion, passion, and loss. Here, middle-school kids explore the global conditions and history that gave rise to the Vietnam War, the reasons why the United States became increasingly embroiled in the conflict, and the varied causes of its shocking defeat. Full color.